Privoxy is a non-caching web proxy with advanced filtering capabilities for enhancing privacy, modifying web page data and HTTP headers, controlling access, and removing ads and other obnoxious Internet junk. Privoxy has a flexible configuration and can be customized to suit individual needs and tastes.
It has application for both stand-alone systems and multi-user networks.
Nice proxy, just lacking HTTPS filtering IMO. Though it can be done with stunnel according to its author but you'll never get a reply how to do...